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When to plant hyacinths in Trelew: by 29 April

In Trelew, hyacinth: plant by 29 April. The winter here is too mild for our late-planting rule, so we give no later limit.

Hyacinth in Trelew: soil, season and weather

No month averages below 0 °C at night; the coldest nights, in July, average 2.3 °C.

Plantingby 29 April
First autumn frost29 May
Coldest nightsJuly, 2.3 °C
Soil back at 1 °C in springalready in the first week of July
Daylight10:18 on 29 April
Daylight at the winter solstice8:58

The same dates in Trelew hold for Garlic, Tulip, Daffodil and Crocus.

Hyacinth in Trelew: depth, winter cold, pests and pets

Plant hyacinths 10 cm deep, at least 7.5 cm apart (RHS).

In Trelew the average daily temperature stays at 10 °C or lower for about 13 weeks a year (our estimate from ten years of monthly weather). For this bulb Wisconsin Horticulture Extension gives a cold period of 12–15 weeks at about 2–10 °C. The winter here gives that in the ground, so the bulbs need no pre-chilling.

Flowers get smaller in the years after planting: for full spikes, replace the bulbs or add a few new ones each autumn (RHS).

If squirrels are a problem, protect the bulbs with wire mesh (RHS). Hyacinths are toxic to dogs, cats and horses: intense vomiting and diarrhoea (ASPCA).

Sources: RHS, Wisconsin Horticulture Extension, ASPCA.

Hyacinth in nearby cities

Around Trelew, Bariloche is 138 days earlier and Bahía Blanca 17 days later.

CityDistanceDateDifference
Comodoro Rivadavia338 kmby 24 April5 days earlier
Neuquén531 kmby 10 May11 days later
Bariloche546 km12 December – 14 May138 days earlier
Bahía Blanca565 kmby 16 May17 days later
Coyhaique595 km15 December – 25 May135 days earlier
Puerto Montt657 kmby 7 May8 days later

Where to buy hyacinth for planting in Trelew

Planting stock goes into the ground by 29 April; buy it before that. Within 15 km of Trelew OpenStreetMap lists 1 plant nursery and 4 markets (collected 28 October 2026).

Places: © OpenStreetMap contributors, ODbL.

Questions

When to plant hyacinths in Trelew?

In Trelew, hyacinth: plant by 29 April. The winter here is too mild for our late-planting rule, so we give no later limit.

When is the last spring frost in Trelew?

Last spring frost around 29 August, first autumn frost around 29 May.

Other crops in Trelew, with their dates